In order to determine Schistosoma mansoni infection rates in Biomphalaria tenagophila and B. straminea. low stringency polymerase chain reaction (LS-PCR) technique was used as a complementary method to light exposure technique. LS-PCR has already been standardized in our laboratory to detect the trematode DNA in B. https://parlorcityfurniturers.shop/product-category/rocking-chair/